{"id":559865,"date":"2018-12-20T09:44:39","date_gmt":"2018-12-20T13:44:39","guid":{"rendered":"https:\/\/spaceweekly.com\/?guid=540b2bc790589529ec709415ab34fcd3"},"modified":"2018-12-20T09:44:39","modified_gmt":"2018-12-20T13:44:39","slug":"why-does-nuclear-fission-produce-pear-shaped-nuclei","status":"publish","type":"post","link":"https:\/\/spaceweekly.com\/?p=559865","title":{"rendered":"Why does nuclear fission produce pear-shaped nuclei?"},"content":{"rendered":"<p>Nuclear fission is a process in which a heavy nucleus split into two. Most of the actinides nuclei (plutonium, uranium, curium, etc) fission asymmetrically with one big fragment and one small. Empirically, the heavy fragment presents on average a xenon element (with charge number Z=54) independently from the initial fissioning nucleus. To understand the mechanism that determines the number of protons and neutrons in each of the two fragments has been a longstanding puzzle.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nuclear fission is a process in which a heavy nucleus split into two. Most of the actinides nuclei (plutonium, uranium, curium, etc) fission asymmetrically with one big fragment and one small. Empirically, the heavy fragment presents on average a xenon&#8230;<\/p>\n","protected":false},"author":0,"featured_media":615444,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-559865","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/559865","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=559865"}],"version-history":[{"count":1,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/559865\/revisions"}],"predecessor-version":[{"id":559866,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/posts\/559865\/revisions\/559866"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=\/wp\/v2\/media\/615444"}],"wp:attachment":[{"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=559865"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=559865"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/spaceweekly.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=559865"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}